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The sum of the first three terms of an AP is $30$ and the sum of the last three terms is $36$. If the first term is $9$, then the number of terms is :
- (a)$10$
- (b)$5$
- (c)$6$
- (d)$13$
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(B) $5$
The sum of the first three terms of an AP is 30 and the sum of the last three terms is 36 . If the first term is 9 ,…
CBSE Class 10 Maths PYQ · Arithmetic Progressions · Sum Formula · 1 Mark · March 2024 · Standard
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